Stephan Hennig wrote:
Hi,
I didn't have the opportunity to touch luaTeX yet, but let me ask one question in advance: Since luaTeX has a built-in MetaPost interpreter, is it possible to refer to a certain figure in a MetaPost source file for inclusion, instead of a compiled figure?
As an example, I would like to say in a TeX document (syntax may differ)
\includeMetaPost{foo.2}
and this should not refer to the pre-compiled file
foo.2
but to section
figure(2); ... endfig;
in file
foo.mp
and compile it on-the-fly. Would that be possible?
mplib is still just mp so it ptocessed what is passed to it; no intelligence is added to the mp kernel however, when using the lib ons is in control over what is passed to it in the past i did what you describe in metafun by using just a macro (loadfigure) which filters the image from a file; in luatex we can be more clever (i admit that i hadn;t yet thought of replacing the macro -) using lua we get something ... function filterfromMPblob(data,number) return (data:match(string.format("beginfig%%(%s%%).-endfig",number)) or "") .. " ;" end test this with: str = [[ beginfig(1) draw fullcircle ; endfig ; beginfig(2) draw fullcircle ; endfig ; ]] print(filterfromMPblob(str,2)) glue to tex: \def\includeMetaPost#1#2% io.loaddata is part of l-io.lua {\directlua0{tex.print(filterfromMPblob(io.loaddata("#1",#2)))}} of course this need to be embeded in some general mp support (i'll add it to my todolist; actually a bit more is involved since one probably wants to include the data between the figures too since it may be called upon) ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------